Dewatering Effect on Virtual Settlement of Pile Foundation: case study in Bab AL-Mudham area, Baghdad-Iraq

Mahmood D. Ahmed; Bassim Hussein khudhaer; Ammar Abdul_hassan SHeikhah

Mahmood D. Ahmed Assistant professor-Civil engineering department Engineering college Baghdad University/ Iraq
Bassim Hussein khudhaer Assistant professor-Civil engineering department Engineering college Baghdad University/ Iraq
Ammar Abdul_hassan SHeikhah Assistant lecturer-Civil engineering department Engineering college Baghdad University/ Iraq

Keywords: Dewatering, Negative Skin Friction, Pile Foundation Settlement, phreatic surface

Abstract

The need for Dewatering is very important in construction workshops field and sometimes it needs to pay more attention as a result of its impacts on causing additional settlement of nearby pile foundations. Dewatering construction may become a costly topic if ignored during project planning and designing .In this paper a simplified procedure maybe adopted to calculate the foundation settlement induced by using dewatering system which is required to lower the water table level to reach a dry condition during construction. Synthesized case study adopted at a specified location in Baghdad city and analysis are computed for two types of piles both of them are submerged with water. Results shows the effect of dewatering on pile foundation settlement, consolidation of soil around the pile shaft, soil-pile interaction and negative skin friction.